1. Whereto Transhumanism? The Literature Reaches a Critical Mass;Agar;Hastings Center Report,2007
2. Liberal Eugenics, 3-16; A. Buchanan, “Choosing Who Will Be Disabled: Genetic Intervention and the Morality of Inclusion;Agar;Social Philosophy and Policy,1996
3. The cover illustration of the hardcopy edition of this book-a muscled male arm, dressed in what appears to be Superman's blue costume, with the rising sun behind it-suggests that Harris is not unduly concerned about the historical resonances of his philosophical program